A description of the dipleidoscope, or double-reflecting meridian and altitude instrument
Subtitle: with plain instructions for the method of using it in the correction of time-keepers
Edition: 4th ed.
Publisher: The Author
Published: 1845
Place of publication: London
Language: eng
Number of pages: 24
Subjects: Dipleidoscope; Transit-instruments
Notes: Microfilm. New York, N.Y. : Columbia University Libraries, 2007. 1 microfilm reel ; 35 mm. Master negative: 2007-1012.